Distributed Test Method Applicable to System-Level Test of Intelligent High Voltage Equipment

ABSTRACT

A distributed test method applicable to a system-level test of intelligent high voltage equipment. The method includes: firstly, carrying out unified modeling on test equipment behaviors according to test requirements, and generating a general test case for ensuring accuracy and coordination of test behaviors and test time sequences under various work conditions; then, extracting, according to a feature element of role defining, sequence states of same roles from the general test case, and recombining the sequence states according to an execution sequence so as to form test sub-cases of the roles; finally, executing, by each piece of test equipment, corresponding test sub-cases to achieve cooperative linkage by means of information interaction, so as to accomplish entire process simulation of the test conditions.

The present patent application claims the priority of Chinese patentapplication No. 201510608274.3, entitled “Distributed test methodapplicable to system-level test of intelligent high voltage equipment”submitted on Sep. 22, 2015, by Applicants XJ GROUP CORPORATION, et al.The whole text of the present application is incorporated by referencein the present application.

TECHNICAL FIELD

The present disclosure relates to a distributed test method applicableto a system-level test of intelligent high voltage equipment, andbelongs to the technical field of intelligent substation systems.

BACKGROUND

Intelligence of high voltage equipment is one of important items aboutintelligent power grid construction, and entire-life-cycle management ofthe high voltage equipment and optimized running of the power grid areachieved by means of functions such as state sensing, risk assessment,intelligent control and optimized regulation of the high voltageequipment. In order to ensure reliable running of intelligent highvoltage equipment, it is necessary to carry out various tests on basicfunctions, performance indexes and the like at the stage of productdesign, delivery inspection or field installation. Because asystem-level test of the intelligent high voltage equipment covers aplurality of pieces of equipment including a sensor layer, a spacerlayer and a station control layer and integral function of the abovepieces of equipment based on network interaction and mutual cooperation,this test is complex, and highly requires relevant work conditions andtime sequences. At present, in actual engineering, due to limits offield conditions, only a single equipment-level test is carried out,continuous work condition simulation required by the system-level testis accomplished by manual cooperation, and system performances aremanually evaluated. Therefore, the problems of high requirement onstaffs, high time consumption, test incompleteness, low test efficiencyand the like have been exposed.

SUMMARY

The present disclosure aims to provide a distributed test methodapplicable to a system-level test of intelligent high voltage equipment,to solve the problems of difficult operation and low efficiency duringdebugging test of intelligent high voltage equipment at present.

To solve the above technical problem, the present disclosure provides adistributed test method applicable to a system-level test of intelligenthigh voltage equipment. The test method includes the following steps:

1) carrying out unified modeling on test equipment behaviors accordingto test requirements, and generating a general test case;

2) extracting basic elements associated with sequence states of sameroles in the general test case, and recombining the basic elementsaccording to an execution sequence so as to form test sub-cases of theroles;

3) executing, by each piece of test equipment, corresponding testsub-cases after a test is started, and achieving cooperative linkage bymeans of information interaction, so as to accomplish an entire processof test conditions.

The general test case in Step 1) globally carries out systematicdescription and normalized expression on behaviors and time sequencesrequired by system work conditions, corresponding action subjects beingdetermined in different processes of the general test case.

The unified modeling refers to systematically ensuring accuracy andcoordination of test behaviors and test time sequences under variouswork conditions, and the basic elements contained in an establishedmodel include state time sequences, test work conditions, equipmentbehavior associations, sequence conversion modes and role definitions.

The roles refer to the action subjects in different processes of thegeneral test case, namely the test equipment.

When each piece of test equipment executes the corresponding testsub-cases, an analog quantity or a switch quantity is correspondinglyoutput according to a pre-set time sequence so as to achieve simulationof high voltage equipment work conditions and test equipmentenvironments.

When each piece of test equipment executes the corresponding testsub-cases, output information about tested equipment and interactioninformation about other testers are collected in real time, andexecution of the next work condition or skipping of relevant workconditions in a test sequence is carried out according to theinteraction information.

The test method further includes: collecting, analyzing and evaluating,by each piece of test equipment, action feedback and data information ina test process, so as to automatically accomplish function verificationand performance detection of the tested equipment.

The present disclosure has the beneficial effects as follows. In thepresent disclosure, firstly, unified modeling is carried out on testequipment behaviors according to test requirements, and a general testcase is generated for ensuring accuracy and coordination of testbehaviors and test time sequences under various work conditions; then,according to a characteristic element of role definition, for each ofsame roles in the general test case, sequence states of the same roleare extracted from the general test case, and are recombined accordingto an execution sequence so as to form test sub-case of the role;finally, each piece of test equipment executes corresponding testsub-case to achieve cooperative linkage by means of informationinteraction, so as to accomplish entire process simulation of the testconditions. The present disclosure is simple to achieve and reliable,can automatically meet system-level test requirements of intelligenthigh voltage equipment, is good in openness, and can improve theefficiency and accuracy of a complex system-level test; meantime,representative test cases established in the above process can besolidified, such that the reusability and the flexibility are improved,and a popularization and application prospect is wide.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of a test system for intelligent highvoltage equipment in the present disclosure;

FIG. 2 is a diagram of a unified model for test cases in an embodimentof the present disclosure;

FIG. 3 is a diagram of test execution work conditions in an embodimentof the present disclosure.

DETAILED DESCRIPTION

The specific implementation of the present disclosure will be furtherillustrated below in conjunction with the drawings.

To overcome the defects of a system test on intelligent high voltageequipment in current engineering application, the present disclosureprovides a distributed test method applicable to a system-level test ofintelligent high voltage equipment. The method includes: firstly,carrying out unified modeling on test equipment behaviors according totest requirements, and generating a general test case for ensuringaccuracy and coordination of test behaviors and test time sequencesunder various work conditions; then, for each of same roles in thegeneral test case, extracting, according to a characteristic element ofrole definition, sequence states of the same role from the general testcase, and recombining the sequence states according to an executionsequence so as to form a test sub-case of the role; finally, executing,by each piece of test equipment, a respective test sub-case to achievecooperative linkage by means of information interaction, so as toaccomplish entire process simulation of the test work conditions. Themethod includes the specific implementation steps as follows.

1. Analysis of Test System and Test Work Condition

In this step, by analyzing a test system and test work conditions, maintasks and basic task elements of each piece of equipment in the systemare determined according to a system architecture of a test environmentand test requirements. Without loss of generality, the presentembodiment provides an illustration of a test system architecture ofintelligent high voltage equipment. As shown in FIG. 1, according tobasic application requirements of actual engineering, the system iscomposed of three layers, namely an uppermost layer, a middle layer anda lower layer, the uppermost layer being composed of station endsimulation equipment (a background system of a station control layer ofa simulation substation), a time hack device and a test control device,the middle layer being spacer layer equipment including an intelligentcontrol component and an intelligent monitoring component, the lowerlayer being an intelligent high voltage equipment tester configured tosimulate interfaces of various sensors installed on high voltageequipment. In an environment shown in FIG. 1, the intelligent controlcomponent and the intelligent monitoring component serving as core partsof the intelligent high voltage equipment are tested equipment, and thestation end simulation equipment and the intelligent high voltageequipment tester are main test equipment, wherein a station end unitplays a role of a station end background in a test process, and isconfigured to receive and collect various pieces of information ofsubordinate equipment, so as to visualize equipment running and controlstates; meanwhile, the station end unit serves as a station end manualcontrol platform, so as to issue a control command for switchingoperation or on-load voltage regulation and to feed back an executionprocess; also meanwhile, the station end unit plays a role of a judge inthe test process, and evaluates the performances of the tested equipmentby comparing system action feedbacks and achieving test expectations.The intelligent high voltage equipment tester plays roles of highvoltage equipment and a judge, and is configured to dynamically simulaterunning work conditions and operation work conditions of the highvoltage equipment and collect various pieces of information about thetested equipment, so as to check the accuracy of action behaviorsthereof. The time hack device and the test control device are auxiliarytest equipment, which provides a stable time hack data source andtransfers information.

2. Unified Modeling on Test Cases to Generate General Test Case

Unified modeling is carried out on test equipment behaviors according totest requirements, the test requirements are refined, test tasks aredecomposed, and a general test case is generated. The general test casemainly refers to globally carrying out systematic description andnormalized expression on behaviors and time sequences required by systemwork conditions, and it is necessary to determine corresponding actionsubjects in different processes of the general test case. That is, testroles are allocated for relevant testers to be played, basic elementssuch as a time sequence for describing a certain work condition and testwork conditions are organized so as to form sequence state pages, andall sequence state pages are arranged and organized according to anexecution sequence so as to form a general test case base. As shown inFIG. 2, a unified model for the test cases is provided. The modelcontains the basic elements such as time sequences of states, test workconditions, equipment behavior associations, sequence conversion modesand role definitions. The present embodiment provides an on-load voltageregulation system-level general test case, as shown in Table 1.

TABLE 1 On-load voltage regulation system-level general test caseSequence Serial Work condition Transmitting Receiving conversion Rolenumber description equipment equipment mode illustration 1 Enter initialtest Station end Intelligent Trigger mode: Station end state, andstation end simulation high voltage informing relevant simulation sendson-load voltage equipment equipment equipment, such as equipmentregulation control tester intelligent high starts test command voltageequipment tester, in system of entering pre-test work conditions 2Simulate signals such Intelligent Intelligent Delay mode: Intelligenthigh as current voltage high voltage terminal remaining time voltageequipment switch quantity in equipment for 10 s tester simulates runningstate of tester pre-test running primary equipment work conditions aspre-test conditions of primary equipment Collect Intelligent Testcontrol Tested primary terminal device equipment equipment intelligentrunning state terminal information collects primary equipment runninginformation Upload primary Test control Station end Station endequipment device simulation simulation running state equipment equipmentinformation acquires primary equipment running state information 3Station end sends Station end Test control Trigger mode: Station endon-load voltage simulation device starting simulation regulationequipment immediately equipment control while starts test commandsequence 2 is up 4 Test control device Test control Intelligent Triggermode: Issue test receives on-load device terminal receiving controldevice voltage regulation on-load information control command voltagesent by station end regulation and then issues control same tointelligent command terminal sent by station end 5 Control outputIntelligent Intelligent Trigger mode: Intelligent of intelligent controlhigh voltage receiving terminal control component equipment on-loadsends component tester voltage on-load regulation voltage controlregulation command command sent by test (output) control device 6Simulate feedback Intelligent Intelligent Trigger mode: Intelligentquantity of high terminal high voltage receiving high voltage voltageequipment equipment on-load equipment in regulation tester voltagetester simulates process after regulation feedback collecting inputcontrol quantity of information sent command high voltage by intelligentsent by equipment in terminal intelligent regulation terminal process,and evaluates whether action behaviors and time of intelligent terminalmeet expectations 7 Read control Intelligent Intelligent Delay mode:Intelligent result feedback high voltage control time lasts terminalcollects information equipment component for 10 s state of regulatedtester high voltage equipment Upload control Intelligent Test controlInformation result feedback control device reaction informationcomponent Upload control Test control Station end Information resultfeedback device simulation reaction information equipment Evaluate thistest Station end Test Station end situation, and simulation evaluationsimulation record test equipment file equipment result evaluates whetheraction behaviors and time of intelligent terminal meet expectations 8End test Station end Intelligent Trigger mode: Station end simulationhigh voltage informing simulation equipment equipment relevant equipmenttester and equipment, ends test, and the like such as records report;intelligent intelligent high voltage high voltage equipment equipmenttester, in tester stops system of output ending test

3. Generation of Test Sub-Cases

According to a basic element of role definition, for each of same rolesin the general test case, sequence states of the same role are extractedfrom the general test case, and the sequence states are recombined insequence so as to form a test sub-case of the role. Each piece of testequipment corresponds to a role, so test sub-case (as shown in FIG. 2)corresponding to each piece of test equipment can be generated based onroles in the general test case. The test sub-cases carry out normalizeddescription on a test state execution sequence, work conditiondescriptions, a sequence conversion method, sequence behaviors and roleannotations of tester equipment, and can be installed in a distributedmanner. According to an on-load voltage regulation system general testcase shown in Table 1, implementation examples of a test sub-case of thestation end simulation equipment and a test sub-case of the intelligenthigh voltage equipment tester can be extracted, as shown in Table 2 andTable 3. The test sub-cases are specific test steps executed by atester, and file formats thereof shall meet running requirements of thetester equipment, may be a TZT format or a BAT format, and can bedirectly loaded by test equipment and called during test.

TABLE 2 Test sub-case of station end simulation equipment SequenceSerial Work condition conversion number description mode Sequencebehavior Role annotation 1 Test preparation Trigger Inform, by meansStation end state mode: of message, simulation manual start relevantequipment, equipment or sequence such as intelligent starts test packetcalling high voltage start equipment tester, in system of enteringpre-test work conditions 2 Pre-operation Delay mode: Enter operationStation end state of high time lasts for pre-test state, and simulationvoltage 10 s acquire state equipment equipment information acquiresoperation about high pre-test state voltage information about equipmenthigh voltage equipment 3 Station end sends Trigger mode: Send on-loadStation end on-load voltage start test voltage regulation simulationregulation control immediately command to spacer equipment outputscommand when delayed layer on-load voltage time (10 s) of regulationcommand sequence 2 is up 4 Read back state of Delay mode: Acquire stateof Station end high voltage time lasts for 10 s high voltage simulationequipment, and equipment, and equipment reads check whether checkwhether back state of high operation succeeds operation succeeds;voltage equipment, evaluate whether and checks whether action behaviorsoperation succeeds Evaluate this and time of Station end test situation,intelligent terminal simulation and record meet expectations; equipmentevaluates test result generate test whether action evaluation filebehaviors and time of intelligent terminal meet expectations 5 End testTrigger mode: Save test Station end enter this state evaluation filesimulation immediately equipment when delayed ends this test time (10 s)of sequence 4 is up

TABLE 3 Test sub-case of intelligent high voltage equipment testerSequence Serial Work condition conversion Sequence number descriptionmode behavior Role annotation 1 Test waiting state Trigger mode: Waitfor beginning Intelligent high entering next state of system testvoltage equipment after receiving tester waits for test test startingstarting message of message sent by station end unit station endsimulation equipment 2 Running state Delay mode: time Output signalssuch Intelligent high of primary lasts for 10 s as current voltagevoltage equipment equipment before Trigger mode: switch quantity testersimulates on-load voltage entering next state during normal running workregulation immediately after running of primary conditions of operationreceiving voltage equipment to primary equipment regulation contactsimulate before state before on-load signal sent by on-load voltagevoltage regulation intelligent regulation Monitor on-load terminalMonitor on-load Intelligent high voltage regulation equipment voltageregulation voltage equipment process command sent by tester monitorstest control device on-load voltage on network regulation command sentby test control device on network Monitor voltage Intelligent highregulation action voltage equipment signal sent by tester monitorsintelligent terminal on-load voltage equipment regulation command sentby intelligent terminal on network 3 Change running Delay mode: timeChange running Intelligent high state of primary lasts for 10 s state ofprimary voltage equipment equipment equipment tester changes accordingto according to running state of on-load voltage on-load voltage primaryequipment regulation regulation according to command command. Evaluateon-load voltage whether action regulation command command Evaluate thistest behaviors and Intelligent high situation, and time of voltageequipment record test result intelligent tester evaluates terminal meetwhether action expectations; behaviors and time generate test ofintelligent evaluation file terminal meet expectations 4 End testTrigger mode: Save test Intelligent high entering this state evaluationfile and voltage equipment immediately stop test output tester ends thistest when delayed time (10 s) of sequence 3 is up

4. Test Execution

After a test is started, each piece of tester equipment executes itsrespective test sub-case. When each piece of test equipment executes thetest case, on one hand, an analog quantity or a switch quantity iscorrespondingly output according to a pre-set time sequence so as toachieve simulation of high voltage equipment work conditions and testequipment environments, and on the other hand, interaction informationabout tested equipment and interaction information about other testersare collected in real time, and execution of the next work condition orskipping to a relevant work condition in a test sequence is carried outaccording to the interaction information. Entire process simulation ofthe test work conditions is accomplished by means of real-timeinformation interaction and cooperative linkage between the testequipment and the tested equipment or other pieces of test equipment.

FIG. 3 shows a test process of an on-load voltage regulation system inthe present embodiment. (1), Station end simulation equipment sends anon-load voltage regulation control command to a test control device;(2), the test control device issues the on-load voltage regulationcontrol command to an intelligent control component (such as anintelligent terminal); (3), (4) and (6), the intelligent controlcomponent acquires a current running state of high voltage equipment(simulated by an intelligent high voltage equipment tester); (5), theintelligent control component sends an on-load voltage regulationcommand to the high voltage equipment, and the high voltage equipmentchanges the running state according to a control requirement; (3), (4)and (6), the intelligent control component acquires a running state ofthe action-regulated high voltage equipment (simulated by an intelligenthigh voltage equipment tester); (7), the intelligent control componenttransmits the running state of the action-regulated high voltageequipment to the test control device; (8), the test control devicetransmits the running state of the action-regulated high voltageequipment to the station end simulation equipment, so as to form acomplete regulation process.

The present disclosure can perform test result evaluation in the wholetest process, each piece of test equipment analyzes and checks actionfeedback situations and data information in the test process, all piecesof test equipment co-accomplish function verification and performancedetection of tested equipment, and after test evaluation isaccomplished, this test is ended.

The present disclosure is described above in conjunction with examplesin the drawings. However, the present disclosure is not limited to theabove specific implementation. Many forms can be also made withoutdeparting from the scope protected by the purposes and claims of thepresent disclosure. These forms fall within the protective scope of thepresent disclosure.

What is claimed is:
 1. A distributed test method applicable to asystem-level test of intelligent high voltage equipment, comprising: 1)carrying out unified modeling on test equipment behaviors according totest requirements, and generating a general test case; 2) for each ofsame roles in the general test case, extracting basic elementsassociated with sequence states of the same role, and recombining thebasic elements according to an execution sequence so as to form a testsub-case of the role; 3) upon starting of the test, executing, by eachpiece of test equipment, a respective test sub-case, and achievingcooperative linkage by means of information interaction, so as toautomatically accomplish an overall process of test work conditions. 2.The distributed test method applicable to the system-level test of theintelligent high voltage equipment of claim 1, wherein the general testcase in Step 1) globally carries out systematic description andnormalized expression on behaviors and time sequences required by thesystem work conditions, and wherein during each of different processesof the general test case, a corresponding action subject is determined.3. The distributed test method applicable to the system-level test ofthe intelligent high voltage equipment of claim 2, wherein the unifiedmodeling systematically ensures accuracy and coordination of testbehaviors and test time sequences under various work conditions, and thebasic elements contained in an established model comprise time sequencesof states, test work conditions, equipment behavior associations,sequence conversion modes and role definitions.
 4. The distributed testmethod applicable to the system-level test of the intelligent highvoltage equipment of claim 3, wherein the roles are the action subjectsin the different processes of the general test case, namely the testequipment.
 5. The distributed test method applicable to the system-leveltest of the intelligent high voltage equipment of claim 4, wherein wheneach piece of test equipment executes the corresponding test sub-case,an analog quantity or a switch quantity is correspondingly outputaccording to a pre-set time sequence so as to achieve simulation of highvoltage equipment work conditions and test equipment environments. 6.The distributed test method applicable to the system-level test of theintelligent high voltage equipment of claim 5, wherein when each pieceof test equipment executes the corresponding test sub-case, outputinformation about tested equipment and interaction information aboutother testers are collected in real time, and execution of a next workcondition or skipping to a relevant work condition in a test sequence iscarried out according to the interaction information.
 7. The distributedtest method applicable to the system-level test of the intelligent highvoltage equipment of claim 1, further comprising: collecting, analyzingand evaluating, by each piece of test equipment, action feedback anddata information during the test, so as to automatically accomplishfunction verification and performance detection of the tested equipment.8. The distributed test method applicable to the system-level test ofthe intelligent high voltage equipment of claim 2, further comprising:collecting, analyzing and evaluating, by each piece of test equipment,action feedback and data information during the test, so as toautomatically accomplish function verification and performance detectionof the tested equipment.
 9. The distributed test method applicable tothe system-level test of the intelligent high voltage equipment of claim3, further comprising: collecting, analyzing and evaluating, by eachpiece of test equipment, action feedback and data information during thetest, so as to automatically accomplish function verification andperformance detection of the tested equipment.
 10. The distributed testmethod applicable to the system-level test of the intelligent highvoltage equipment of claim 4, further comprising: collecting, analyzingand evaluating, by each piece of test equipment, action feedback anddata information during the test, so as to automatically accomplishfunction verification and performance detection of the tested equipment.11. The distributed test method applicable to the system-level test ofthe intelligent high voltage equipment of claim 5, further comprising:collecting, analyzing and evaluating, by each piece of test equipment,action feedback and data information during the test, so as toautomatically accomplish function verification and performance detectionof the tested equipment.
 12. The distributed test method applicable tothe system-level test of the intelligent high voltage equipment of claim6, further comprising: collecting, analyzing and evaluating, by eachpiece of test equipment, action feedback and data information during thetest, so as to automatically accomplish function verification andperformance detection of the tested equipment.